Vulnerability identifier: #VU24217

Vulnerability risk: Low

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:P/RL:U/RC:C]

CVE-ID: CVE-2020-6847

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
OpenTrade
Client/Desktop applications / Other client software

Vendor: 3s3s

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data when an administrator attempts to delete a message that contains JavaScript. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

OpenTrade: 0.2.0

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External links
http://gist.github.com/Marshall-Hallenbeck/bf6a4a4f408bb7a5e0a47cb39dc1dbbe
http://github.com/3s3s/opentrade/blob/4f91391164219da30533453e1ff6800ef2ef3c6b/static_pages/js/index.js#L473

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.